Which of the following is correct: A. Non-keratinized epithelium is characterized by absence of stratum granulosum and stratum corneum, The surface cells are nucleated B. Parakeratinished epithelium is characterized by superficial cells with pyknotic nuclei and absence of stratum granulosum C. In ortho keratinisation the superficial cells lose their nuclei, but stratum granulosum is present D. All of the above
Long connective tissue papillae and keratinized epithelia are a feature of these parts of oral mucosa: A. gingiva and alveolar mucosa B. Hard palate and gingiva C. Buccal andalveolar mucosa D. Hard and soft palate
All of the following is lined by stratified squamous epithelium, except: A. Lips B. Tongue C. Roof of the soft palate D. Oropharynx
Membrane coating granules may: A. Appear as circular with an amorphous core in keratinized epithelium B. Originate from golgi system C. Packed with tonofilaments D. Helps in adhesion of fully keratinized epithelial cells
Basement membrane: A. Contains lamina lucida & Lamina dura B. Consists luratihyaline granules C. consists of lamina densa and lamina lucida D. consists of desmosomes and hemi desmosomes
The high level clear cell present in the oral epithelium is: A. Melanocyte B. Lymphocyte C. Merkel cell D. Langerhans cell
Vonebilers glands open into which papilla: A. Foliate B. Filiform C. Circumvallate D. Fungiform
Dendritic cell located in the stratified squamous keratinizing epithelium of the oral cavity include: A. Keratinocytes B. Mast cells C. Melanocytes D. Myoepithelila cells
After the eruption of crown, reduced enamel is known as: A. Primary attachment epithelium B. Secondary attachment epithelium C. Primary enamel cuticle D. Reduced enamel epithelium
The vermilion border requires frequent moistening because: A. It contains more No. of sweat glands B. It contains more do. of sebaceous glands C. It contains less number of sebaceous glands D. It contains less number of sweat glands
Stippling’s: A. Due to alternate elevations and depressions in epithelium B. Functional adaptation to mechanical impact C. Disappeared in progressing gingivitis due to edema and this change is reversible D. All of the above
Which of the following is non-keratinocyte: A. Langhan’s cell B. RBC C. Langerhans cell D. Grey cell
Partially keratinized papilla is: A. Fungiform B. Filiform C. Circumvallate D. Foliate
Keratohyaline granules are more evident in: A. Keratinised B. Non keratinized C. Parakeratinised D. Orthokeratinized
Epithelium of the inner surface of the gingival sulcus: A. Has no rete pegs B. Has prominent rete pegs C. Is keratinized D. Is para-keratinized
Elongated rete pegs are seen in: A. Alveolar mucosa B. Floor of the mouth C. Attached gingiva D. Buccal mucosa
The connective tissue of the gingiva is known as the: A. Lamina dura B. Dental cuticle C. Lamina propria D. Fibroblasts
Color of the normal gingiva is: A. Pink B. Red C. Coral pink D. None of the above
Epithelium of oral mucous membrane is: A. Keratinized B. Non keratinized C. Ortho, para and non keratinized D. Only para keratinized
The position of mucogingival line: A. Shifts apically with age B. Shifts coronally with age C. Constant throughout the life D. None of the above
Keratohyaline granules are found in: A. St. granulosum B. St. spinosum C. St. basale D. Prickle cell layer
In the tongue bitter taste is more perceived at: A. Tip B. Sides C. Back D. Front
The major cells seen in gingiva are: A. Fibro blast B. Odontoblasts C. Cementoblasts D. Merkel cells
Cells of the spinous layer are generally: A. Larger than the basal cells B. Smaller than the basal cells C. same size as that of basal cells D. None of the above
Which of the following has immune function in the oral mucous membrane? A. Melanocyte B. Merkel cells C. Langerhan cell D. Keratinocyte
The range of level of fluoride secreted by the glands into the mouth is: A. 0.004-0.005 ppm B. 0.006-0.007 ppm C. 0.007-0.005 ppm D. 0.007-0.08 ppm
Protein making up the bulk of keratohyaline granules in stratum granulosum of keratinized epithelium is: A. Involucrin B. Vinculin C. Filaggrin D. Nectin
Which papillae are completely keratinized: A. Fungiform B. Filiform C. Circumvallate D. Foliate
Stratum Germinativum of the oral epithelium is the term given to: A. Basal cell layer B. Granular cell layer C. Spinous cells and granular cells D. Basal cells and parabasal spinous cells
The oral epithelium is attached to the enamel via: A. Reticular fibers B. Collagen fibers C. Hemidesmosomes D. Desmosomes
Buccal mucosa is: A. Keratinized B. Non-keratinized C. Parakeratinised D. Orthokeratinized
Masticatory mucosa is: A. Para keratinised B. Ortho keratinised C. Non keratinised D. Sub keratinised
The anatomic crown is shorter than the clinical crown of a tooth in which of the following instances: A. Impaction B. Gingivitis C. Occlusal wear D. Gingival recession
Epithelial attachment is: A. Attachment of ameloblasts to the tooth B. Microscopically it resembles basal lamina C. Derived from secondary attachment epithelium D. All of the above
The mucous membrane of cheeks and lips: A. It attached to buccinator muscle in cheeks B. It attached to orbicularis oris in lips C. A & B are correct D. None of the above
The function of merkel cells is: A. Sensory function B. Secretory function C. Neuro sensory D. Nutritive function
Jacobson’s organ is: A. Auxillary olfactory sense organ B. Ellipsoid/Cigar shaped C. Undergoes degeneration after 4 months of intrauterine life D. All of the above
Stratum germinatum is: A. Stratum basale B. Stratum granulosum C. Stratum basale and parabasal spinous cells D. Stratum spinosum
Supporting cells of taste buds are called as: A. Sustenticular cells B. Taste cells C. Von ebner cells D. Acini
Bulk of lamina propria of the gingiva is made of collagen type: A. I B. II C. III D. IV
Minor salivary glands are present in the submucosa through out the oral mucosa except for the: A. Gingiva and anterior part of hard palate B. Tongue and soft palate C. Retromolar area and hard palate D. Lip and posterior third of the hard palate
Difference between the skin and mucosa of cheek is: A. Thin lamina and non keratinized mucosa of cheek B. Keratinized mucosa of cheek C. Rete pegs D. Thick lamina propria on skin of cheek
The thinnest epithelium of oral cavity is found in the: A. Buccal gingiva B. Lingual gingiva C. Oral surface of lip D. Sublingual mucosa (floor of mouth)
The red zones of lips have: A. 30% Sebaceous glands B. 75% sebaceous glands C. very small number of sebaceous glands, if any D. Absolutely no sebaceous glands
Masticatory mucosa in the oral cavity covers the: A. Floor of the mouth and soft palate B. Alveolar mucosa and vestibular fornix C. Lip and cheek D. Gingiva and hard palate
Merkel cells are found in which of the following tissue: A. Epidermis B. Papillary layer of dermis C. Reticular of dermis D. Hypodermis
Non keratinized epithelium is found over: A. Attached gingiva B. Free gingiva C. Interdental papilla D. Gingival sulcus
Stratum granulosum is not present in: A. Hyper orthokeratosis B. Hyper parakeratosis C. Non keratinized epithelium D. Sulcular epithelium
Bimechanism that unites the epithelium to the tooth surface is: A. Internal basal lamina B. Junctional epithelium C. Reduced enamel epithelium D. Epithelial attachment
Epithelial cells which ultimately keratinize are known as: A. Keratinizing cells B. Melanocytes C. Non-Keratinizing cells D. Clear cells
Lamina densa of the gingival basement membrane is rich in: A. Type I and III collagen B. Type III collagen C. Type IV collagen D. Type I collagen
In which of the following papillae of the tongue are the taste buds predominantly located : A. Circumvallate B. Filliform C. Foliate D. Fungiform
